Datasheet

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LT1213/LT1214

APPLICATIO S

FEATURES

DESCRIPTIO

TYPICAL APPLICATIO

28MHz, 12V/µs, Single Supply

Dual and Quad

Precision Op Amps

The LT

1213 is a dual, single supply precision op amp with

a 28MHz gain-bandwidth product and a 12V/µs slew rate.

The LT1214 is a quad version of the same amplifier. The

DC precision of the LT1213/LT1214 eliminates trims in

most systems while providing high frequency perfor-

mance not usually found in single supply amplifiers.

The LT1213/LT1214 will operate on any supply greater

than 2.5V and less than 36V total. These amplifiers are

specified at single 3.3V, single 5V and ±15V supplies, and

only require 2.7mA of quiescent supply current per ampli-

fier. The inputs can be driven beyond the supplies without

damage or phase reversal of the output. The minimum

output drive is 30mA, ideal for driving low impedance

loads.

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2.5V Full-Scale 12-Bit Systems: V

≤ 0.45LSB

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10V Full-Scale 16-Bit Systems: V

≤ 1.8LSB

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Active Filters

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Photodiode Amplifiers

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DAC Current-to-Voltage Amplifiers

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Battery-Powered Systems

Frequency Response

FREQUENCY (Hz)

10k

GAIN (dB)

100k 1M 10M

1213/14 TA02

–10

–20

–30

–40

–50

–60

Single Supply 3-Pole 1MHz Butterworth Filter

Note: For applications requiring higher slew rate, see the LT1215/LT1216

data sheet. For lower power and lower slew rate, see the LT1211/LT1212 data

sheet.

–

1/2

LT1213

OUT

1213/14 TA01

680Ω

4.12k

200pF

680Ω

390pF

4.12k

5pF

150pF

= 2

MAXIMUM OUTPUT OFFSET = 714µV

0.1µF

, LTC and LT are registered trademarks of Linear Technology Corporation.

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Slew Rate: 12V/µs Typ

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Gain-Bandwidth Product: 28MHz Typ

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Fast Settling to 0.01%

2V Step to 200µV: 500ns Typ

10V Step to 1mV: 1.1µs Typ

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Excellent DC Precision in All Packages

Input Offset Voltage: 275µV Max

Input Offset Voltage Drift: 6µV/°C Max

Input Offset Current: 40nA Max

Input Bias Current: 200nA Max

Open-Loop Gain: 1200V/mV Min

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Single Supply Operation

Input Voltage Range Includes Ground

Output Swings to Ground While Sinking Current

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Low Input Noise Voltage: 10nV/√Hz Typ

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Low Input Noise Current: 0.2pA/√Hz Typ

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Specified at 3.3V, 5V and ±15V

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Large Output Drive Current: 30mA Min

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Low Supply Current per Amplifier: 3.5mA Max

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Dual in 8-Pin DIP and SO-8

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Quad in 14-Pin DIP and NARROW SO-16

Summary of content (20 pages)

PAGE 1
LT1213/LT1214 28MHz, 12V/µs, Single Supply Dual and Quad Precision Op Amps U DESCRIPTIO FEATURES The LT®1213 is a dual, single supply precision op amp with a 28MHz gain-bandwidth product and a 12V/µs slew rate. The LT1214 is a quad version of the same amplifier. The DC precision of the LT1213/LT1214 eliminates trims in most systems while providing high frequency performance not usually found in single supply amplifiers. Slew Rate: 12V/µs Typ Gain-Bandwidth Product: 28MHz Typ Fast Settling to 0.
PAGE 2
LT1213/LT1214 W W W AXI U U ABSOLUTE RATI GS (Note 1) Total Supply Voltage (V + to V –) ............................. 36V Input Current ..................................................... ±15mA Output Short-Circuit Duration (Note 2) ........ Continuous Operating Temperature Range LT1213C/LT1214C ............................ – 40°C to 85°C LT1213M (OBSOLETE) ............... – 55°C to 125°C Storage Temperature Range ................
PAGE 3
LT1213/LT1214 5V ELECTRICAL CHARACTERISTICS VS = 5V, VCM = 0.5V, VOUT = 0.5V, TA = 25°C, unless otherwise noted.
PAGE 4
LT1213/LT1214 5V ELECTRICAL CHARACTERISTICS VS = 5V, VCM = 0.5V, VOUT = 0.5V, 0°C ≤ TA ≤ 70°C, unless otherwise noted. SYMBOL VOS ∆VOS ∆T IOS IB CMRR PSRR AVOL IS PARAMETER Input Offset Voltage Input Offset Voltage Drift (Note 4) Input Offset Current Input Bias Current Input Voltage Range CONDITIONS Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing (Note 5) VCM = 0.1V to 3.4V VS = 2.5V to 12.5V VO = 0.05V to 3.
PAGE 5
LT1213/LT1214 5V ELECTRICAL CHARACTERISTICS VS = 5V, VCM = 0.5V, VOUT = 0.5V, – 55°C ≤ TA ≤ 125°C, unless otherwise noted. SYMBOL VOS ∆VOS ∆T IOS IB CMRR PSRR AVOL IS PARAMETER Input Offset Voltage Input Offset Voltage Drift (Note 4) Input Offset Current Input Bias Current Input Voltage Range CONDITIONS Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing (Note 5) VCM = 0.4V to 3.1V VS = 2.5V to 12.5V VO = 0.05V to 3.
PAGE 6
LT1213/LT1214 + –15V ELECTRICAL CHARACTERISTICS VS = ±15V, VCM = 0V, VOUT = 0V, 0°C ≤ TA ≤ 70°C, unless otherwise noted. SYMBOL VOS ∆VOS ∆T IOS IB PARAMETER Input Offset Voltage Input Offset Voltage Drift (Note 4) Input Offset Current Input Bias Current Input Voltage Range CONDITIONS CMRR PSRR AVOL Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing VCM = –14.9V to 13.
PAGE 7
LT1213/LT1214 3.3V ELECTRICAL CHARACTERISTICS VS = 3.3V, VCM = 0.5V, VOUT = 0.5V, TA = 25°C, unless otherwise noted. (Note 8) SYMBOL PARAMETER VOS Input Offset Voltage Input Voltage Range (Note 9) IO CONDITIONS Maximum Output Voltage Swing Output High, No Load Output High, ISOURCE = 1mA Output High, ISOURCE = 20mA Output Low, No Load Output Low, ISINK = 1mA Output Low, ISINK = 20mA Maximum Output Current MIN 1.8 0 2.60 2.50 2.10 ±30 LT1213AC LT1213AM TYP MAX 75 150 2.1 – 0.3 2.69 2.60 2.22 0.004 0.
PAGE 8
LT1213/LT1214 ELECTRICAL CHARACTERISTICS Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: A heat sink may be required to keep the junction temperature below absolute maximum when the output is shorted indefinitely.
PAGE 9
LT1213/LT1214 U W TYPICAL PERFOR A CE CHARACTERISTICS Voltage Gain, Phase vs Frequency Voltage Gain vs Frequency 140 VS = ±15V 20 GAIN 40 VS = 5V 20 VS = 5V VS = 5V 100 10k 100k 1M 10M 100M FREQUENCY (Hz) 1k –20 100k –20 VS = ±15V CL = 20pF RL = 2k 0 10 20 0 0 –20 60 –40 Slew Rate vs Temperature 24 14 60 20 40 TA = –55°C 30 20 10 1 3 5 7 10 20 TOTAL SUPPLY VOLTAGE (V) 0 30 40 1213/14 G09 Slew Rate vs Supply Voltage VS = ±15V 50 TA = 25°C, 125°C Capacitive Load Handling 8
PAGE 10
LT1213/LT1214 U W TYPICAL PERFOR A CE CHARACTERISTICS Open-Loop Voltage Gain vs Supply Voltage Positive Output Saturation Voltage vs Temperature Open-Loop Gain, VS = 5V 6k 1.4 5k TA = 25°C 4k 3k 2k RL = 2k RL = 500Ω TA = 125°C 0 1k 1 2 3 OUTPUT (V) 4 1213/14 G17 VS = 5V SATURATION VOLTAGE, V + – VOUT (V) TA = –55°C INPUT, 5µV/DIV OPEN-LOOP VOLTAGE GAIN (V/mV) RL = 2k 1.2 ISOURCE = 20mA 1.0 ISOURCE = 10mA 0.8 ISOURCE = 1mA 0.6 ISOURCE = 10µA 0.
PAGE 11
LT1213/LT1214 U W TYPICAL PERFOR A CE CHARACTERISTICS 5V Large-Signal Response 5V Large-Signal Response 5V Small-Signal Response 3V 0V 0V 20mV/DIV 3V 200ns/DIV 50ns/DIV VS = 5V AV = 1 VS = 5V AV = 1 1213/14 G25 1213/14 G26 ±15V Large-Signal Response 20mV/DIV ±15V Small-Signal Response VS = ±15V AV = 1 200ns/DIV VS = 5V AV = –1 RF = RG = 1k CF = 20pF ±15V Large-Signal Response 10V 10V 0V 0V –10V –10V 50ns/DIV 1µs/DIV VS = ±15V AV = 1 1213/14 G28 VS = ±15V AV = –1 RF = RG = 1k 1
PAGE 12
LT1213/LT1214 U W TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Supply Votage Supply Current vs Temperature TA = 25°C 2 TA = –55°C 1 0 1 0 3 2 4 SUPPLY VOLTAGE (V) 2 VS = ±15V 3.8 3.4 3.0 VS = 5V 2.6 2.2 1.
PAGE 13
LT1213/LT1214 U W U UO APPLICATI S I FOR ATIO Supply Voltage The LT1213/LT1214 op amps are fully functional and all internal bias circuits are in regulation with 2.2V of supply. The amplifiers will continue to function with as little as 1.5V, although the input common mode range and the phase margin are about gone. The minimum operating supply voltage is guaranteed by the PSRR tests which are done with the input common mode equal to 500mV and a minimum supply voltage of 2.5V.
PAGE 14
LT1213/LT1214 U W U UO APPLICATI S I FOR ATIO Inputs Typically at room temperature, the inputs of the LT1213/ LT1214 can common mode 400mV below ground (V –) and to within 1.2V of the positive supply with the amplifier still functional. However, the input bias current and offset voltage will shift as shown in the characteristic curves. For full precision performance, the common mode range should be limited between ground (V –) and 1.5V below the positive supply.
PAGE 15
LT1213/LT1214 W U U UO APPLICATI S I FOR ATIO Comparator Applications Sometimes it is desirable to use an op amp as a comparator. When operating the LT1213/LT1214 on a single 3.3V or 5V supply, the output interfaces directly with most TTL and CMOS logic. following photos. These amplifiers are unity-gain stable op amps and not fast comparators, therefore, the logic being driven may oscillate due to the long transition time.
PAGE 16
LT1213/LT1214 U PACKAGE DESCRIPTIO J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110) CORNER LEADS OPTION (4 PLCS) 0.023 – 0.045 (0.584 – 1.143) HALF LEAD OPTION 0.045 – 0.068 (1.143 – 1.727) FULL LEAD OPTION 0.005 (0.127) MIN 0.405 (10.287) MAX 8 7 6 5 0.025 (0.635) RAD TYP 0.220 – 0.310 (5.588 – 7.874) 1 2 0.300 BSC (0.762 BSC) 3 4 0.200 (5.080) MAX 0.015 – 0.060 (0.381 – 1.524) 0.008 – 0.018 (0.203 – 0.
PAGE 17
LT1213/LT1214 U PACKAGE DESCRIPTIO N8 Package 8-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) 0.400* (10.160) MAX 8 7 6 5 1 2 3 4 0.255 ± 0.015* (6.477 ± 0.381) 0.300 – 0.325 (7.620 – 8.255) 0.065 (1.651) TYP 0.009 – 0.015 (0.229 – 0.381) ( +0.035 0.325 –0.015 8.255 +0.889 –0.381 0.130 ± 0.005 (3.302 ± 0.127) 0.045 – 0.065 (1.143 – 1.651) ) 0.125 (3.175) 0.020 MIN (0.508) MIN 0.018 ± 0.003 (0.457 ± 0.076) 0.100 (2.
PAGE 18
LT1213/LT1214 U PACKAGE DESCRIPTIO S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) 0.189 – 0.197* (4.801 – 5.004) 8 7 6 5 0.150 – 0.157** (3.810 – 3.988) 0.228 – 0.244 (5.791 – 6.197) SO8 1298 1 0.010 – 0.020 × 45° (0.254 – 0.508) 0.008 – 0.010 (0.203 – 0.254) 0.053 – 0.069 (1.346 – 1.752) 0°– 8° TYP 0.016 – 0.050 (0.406 – 1.270) 0.014 – 0.019 (0.355 – 0.483) TYP *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.
PAGE 19
LT1213/LT1214 U PACKAGE DESCRIPTIO S Package 16-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) 0.386 – 0.394* (9.804 – 10.008) 16 15 14 13 12 11 10 9 0.150 – 0.157** (3.810 – 3.988) 0.228 – 0.244 (5.791 – 6.197) 1 0.010 – 0.020 × 45° (0.254 – 0.508) 2 3 4 5 6 0.053 – 0.069 (1.346 – 1.752) 0.008 – 0.010 (0.203 – 0.254) 0.014 – 0.019 (0.355 – 0.483) TYP 8 0.004 – 0.010 (0.101 – 0.254) 0° – 8° TYP 0.016 – 0.050 (0.406 – 1.270) 7 0.050 (1.
PAGE 20
LT1213/LT1214 UO TYPICAL APPLICATI S Instrumentation Amplifier with Guard/Shield Driver and Input Bias Current Cancellation V+ 0.1µF + 1M GUARD – 1/4 LT1214 A 10k** 1k Input Bias Current vs Common Mode Voltage RF 1020Ω + 100 RG 113Ω 5000pF 1/4 LT1214 C EACH INPUT BIAS CURRENT (nA) + 1/4 LT1214 B 200Ω INPUTS V + = 5V + OUTPUT – – 1M* – RG 113Ω 1M 22pF GUARD – 1/4 LT1214 D RF 1020Ω 1k 60 40 20 10k 0 0.01 + 0.